EP1649797A1 - Geschirrspülmaschine und dazugehöriges Verfahren zum Betreiben - Google Patents

Geschirrspülmaschine und dazugehöriges Verfahren zum Betreiben Download PDF

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Publication number
EP1649797A1
EP1649797A1 EP04024910A EP04024910A EP1649797A1 EP 1649797 A1 EP1649797 A1 EP 1649797A1 EP 04024910 A EP04024910 A EP 04024910A EP 04024910 A EP04024910 A EP 04024910A EP 1649797 A1 EP1649797 A1 EP 1649797A1
Authority
EP
European Patent Office
Prior art keywords
filter
dishwasher
circulation pump
cleaning mode
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04024910A
Other languages
English (en)
French (fr)
Inventor
Winfried Steiner
Rolf Stahlmann
Stefan Füglein
Klaus-Martin Forst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP04024910A priority Critical patent/EP1649797A1/de
Priority to US11/576,717 priority patent/US20090211600A1/en
Priority to EP05784386A priority patent/EP1802228A1/de
Priority to PCT/EP2005/009799 priority patent/WO2006045374A1/en
Priority to CN2005800360294A priority patent/CN101043837B/zh
Publication of EP1649797A1 publication Critical patent/EP1649797A1/de
Priority to US13/369,517 priority patent/US20120222705A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4202—Water filter means or strainers
    • A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4202—Water filter means or strainers
    • A47L15/4204—Flat filters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/09—Water level
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/10—Water cloudiness or dirtiness, e.g. turbidity, foaming or level of bacteria
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/05—Drain or recirculation pump, e.g. regulation of the pump rotational speed or flow direction
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/34—Change machine operation from normal operational mode into special mode, e.g. service mode, resin regeneration mode, sterilizing mode, steam mode, odour eliminating mode or special cleaning mode to clean the hydraulic circuit

Definitions

  • the present invention relates to a dishwasher comprising a washing chamber, a water collection sump, a circulation pump, a circulation filter system with a flat filter arranged between the washing chamber and the water collection sump and a discharge section arranged between a discharge pump and the washing chamber. Further, the invention relates to a corresponding method for operating the dishwasher.
  • Such a dishwasher is e.g. known from EP 222 306 A1.
  • the water collection sump communicates with the washing chamber through a fine-mesh flat filter.
  • the flat filter retains particulate matter carried by the water flowing from the washing chamber into the water collection sump. It therefore prevents that the particulate matter enter the circulation and block the nozzles of the spraying arms.
  • the flat filter is formed with an opening for a discharge section through which the interior of the washing chamber communicates with the intake of the discharge pump.
  • the discharge section usually houses a coarse sieve, which serves the main purpose of retaining large particles, which might otherwise obstruct or damage the rotor of the discharge pump.
  • the known dishwasher is provided with nozzle means directing a water jet onto the surface of the flat filter for the cleaning of the flat filter.
  • a corresponding method for operating a dishwasher is indicated in claim 11.
  • the dishwasher according to the invention comprises a filter cleaning mode in which the cleaning of the flat filter is performed by means of a smart control of the circulation pump.
  • the cleaning is performed in at least two steps.
  • the circulation pump power is decreased.
  • the expression “decreasing” is used here in a broad sense, i.e. to state that the circulation pump power is reduced in such a way that the water level in the water collection sump increases.
  • the expression “decreasing” includes a switching off of the circulation pump. When the water level increases above the surface of the flat filter, the deposits of the flat filter are floated, i.e. are lifted by the water.
  • the circulation pump power is increased again.
  • the expression “increasing” is also used in a broad sense here, i.e. to state that the circulation pump power is enhanced in such a way that the water level in the water collection sump decreases.
  • the expression “increasing” includes a switching on of the circulation pump.
  • the floating deposits are drawn into the discharge section and the water level decreases below the flat filter. This leads to a transport of the deposits from the flat filter to the discharge section.
  • the invention has several advantages. It is a very easy, cheap and reliable way of cleaning the filters. In addition, no further means are necessary for cleaning the filters. Besides, it offers a lot of flexibility for cleaning the filters.
  • the invention overcomes the prejudice that the water level in the water collection sump should always be below the level of the flat filter. This prejudice is based on the assumption that deposits which have settled on the flat filter should be kept there and should not float around anymore.
  • the filter cleaning mode comprises the steps of:
  • the switching off of the circulation pump is equivalent to decreasing the circulation pump power to zero.
  • the switching off has a very advantageous cleaning effect.
  • the water flows in the opposite direction compared with the water flow during a cycle with a running circulation pump.
  • the water flows from the water collection sump towards the flat filter and the washing chamber.
  • This back sloshing water leads to a very advantageous cleaning of the flat filter.
  • the water level increases very quickly when the circulation pump is switched off. This results in a advantageous floating of the deposits which have settled on the surface of the flat filter.
  • the circulation pump is switched on again.
  • the circulation pump starts up, the water level decreases below the surface of the flat filter and the floating deposits are drawn into the discharge section.
  • the start up of the circulation pump should preferably be very fast in order to optimise the cleaning effect. The faster the start up of the circulation pump, the better is the transport of the floating deposits from the flat filter into the discharge section.
  • a further advantage of this preferred embodiment is that the time for cleaning the filters is very short.
  • the steps decreasing the circulation pump power and increasing the circulation pump power are performed at least twice in the filter cleaning mode.
  • the dishwashing machine is provided with a filter cleaning mode which performs at least the "decreasing-increasing-decreasing-increasing" steps of the circulation pump power.
  • These repeated and successive cleaning steps intensify the filter cleaning effect.
  • the number of repetitions may be chosen as a function of the loading of the filters, or in other words in dependence on the clogging of the filters. The more the filters are loaded or clogged respectively , the more often the cleaning steps should be repeated.
  • the dishwasher comprises several cleaning phases and at least one of the cleaning phases comprises at least one break for performing the filter cleaning mode.
  • Such cleaning phases are e.g. a prewash phase, a main wash phase, a cold rinse phase and a hot rinse phase.
  • at least one of these phases comprises a break.
  • the filter system is cleaned by means of the filter cleaning mode. This prevents a loading or clogging respectively of the filter system during these phases.
  • the cleaning of the filter system is only performed between the different cleaning phases. However, in particular with very dirty dishes, it may happen that the filters get very loaded or even blocked during one of the cleaning phases.
  • the intermediate cleaning breaks according to this preferred embodiment of the invention prevent a loading of the filters during the cleaning phases.
  • the main wash phase comprises at least one break for performing the filter cleaning mode.
  • the main wash phase is usually the cleaning phase which produces the maximum load of the filters, it is advantageous to perform a cleaning break during the main wash phase.
  • At least one of the cleaning phases comprises periodical breaks for performing the filter cleaning mode. This periodical cleaning of the filters improves the cleaning effect further and prevents a blocking of the filters during a cleaning phase.
  • the power of the circulation pump is controlled in such a way that the water level in the water collection sump is below the flat filter with the exception of the break for performing the filter cleaning mode.
  • the circulation pump runs and the water circulates between the washing chamber and the water collection sump.
  • the water level in the water collection sump is kept below the flat filter.
  • the water level in the water collection sump increases above the surface of the flat filter in order to float the deposits of the flat filter.
  • the duration of the respective breaks in which the filter cleaning mode is performed is substantially shorter than the duration of the respective cleaning phases.
  • the duration of the breaks is mainly determined by the time which is necessary to increase the water level in the water collection sump above the surface of the flat filter.
  • the dishwasher is preferably provided with a water level sensor which measures the water level in the water collection sump and sends a signal to a control unit of the dishwasher when the water level has reached a predetermined level above the surface of the flat filter.
  • the duration of the intermediate filter cleaning breaks is usually substantially shorter than the duration of the respective cleaning phases.
  • a typical duration of the main wash phase is e.g. 1 hour, while a typical duration of a filter cleaning break is in a range between a few seconds and a few minutes.
  • the dishwasher comprises a turbidity sensor for measuring the turbidity of the circulating water.
  • the filter cleaning mode is activated as a function of the measurements of the turbidity sensor.
  • the filter cleaning mode is activated automatically when the turbidity of the circulating water reaches a predetermined treshhold.
  • This embodiment ensures for all kinds of dishes that the filters are not blocked up, but cleaned on time. Besides, it guarantees a very efficient use of the filter cleaning mode, as it is only activated when it is necessary.
  • the turbidity sensor is arranged somewhere in the water circulation cycle, preferably in the water collection sump. When the turbidity of the circulating water has reached the predetermined treshhold, the turbidity sensor sends a control signal to a control unit of the dishwasher and the filter cleaning mode is started.
  • the filter cleaning mode is performed between the cleaning phases, in particular between the main wash phase and the rinsing phase.
  • This preferred embodiment has the advantage that the cleaning phases do not have to be interrupted by intermediate breaks.
  • the filter cleaning mode is performed during the breaks between the different cleaning phases.
  • This preferred embodiment of the invention is in particular useful when a cleaning of the filters is not necessary during the cleaning phases, e.g. when the dishes are only slightly dirty.
  • a cleaning of a dishwasher's filter system can be achieved by a specific pulsed water level in the water collection sump.
  • the pulsed water level may be achieved by a pulsed control of the circulation pump power.
  • the upper amplitude of the water level pulse should be above the surface of the flat filter and the lower amplitude of the water level should be below the surface of the flat filter.
  • FIG. 1 shows schematically a vertical section through a dishwasher according to the invention.
  • the dishwasher comprises a washing chamber 1, which is only partially shown.
  • the bottom of the washing chamber 1 is formed with a water collection sump 2 for collecting the washing and rinsing water.
  • Located in the sump 2 is the intake section 3 of a circulation pump 4 for the supply of water to a lower rotating spray arm 5 and a not shown upper rotating spray arm for spraying the water onto the not shown dishes to be washed in a known manner.
  • a circulation filter system Disposed in the washing chamber 1 is a circulation filter system which is installed in the flow path of the water sprayed onto the not shown dishes and flowing back into the sump 2 for being recirculated by the circulation pump 4.
  • the circulation filter system comprises a fine mesh flat filter 7 as a first part below the lower spray arm 5.
  • the flat filter 7 is formed with a frustoconical portion housing a removable large coarse sieve 8 of a corresponding shape installed in the flow path of the water from the washing chamber 1 to the discharge section 10 of a discharge pump 11.
  • the coarse sieve 8 protects the discharge pump 11 from coarse impurities, such as bits of glass, bones and the like which might otherwise obstruct or even damage the discharge pump 11.
  • the frustoconical portion also houses a fine mesh filter 9 which forms the second part of the recirculation filter system.
  • the dishwasher as shown in Fig. 1 also comprises a electrical control unit 12 for controlling the course of the dishwashing programs.
  • the control unit 12 is coupled with a turbidity sensor 13, which is arranged in the water collection sump 2.
  • the turbidity sensor 13 measures the turbidity of the circulating water and delivers a measurement signal to the control unit 12.
  • the control unit 12 is further coupled with the circulation pump 4 and the discharge pump 11 and delivers control signals to the circulation pump 4 and the discharge pump 11.
  • Fig. 2 shows schematically an exemplary embodiment of a cycle profile of a dishwashing program, which may run on a dishwasher according to the invention as shown in Fig. 1.
  • the cycle profile reference is made to the parts of the dishwasher of Fig. 1.
  • the cycle profile is shown in a very simplified way.
  • Fig. 2 the ordinate represents the time t, while the abscissa represents the temperature T of the water for rinsing and the circulation pump power P of the circulation pump 4.
  • the curve A shows the temperature T of the water for rinsing and curve B the corresponding circulation pump power P.
  • the representation of the cycle profile is not true to scale.
  • the cycle profile of Fig. 2 comprises a prewash phase I, a main wash phase II, a cold rinse phase III, a hot rinse phase IV and a drying phase V.
  • the program starts with a prewash phase and water for rinsing is filled into the dishwasher.
  • time t 1 the filling is completed and the circulation pump 4 is started.
  • the water is circulated by means of the circulation pump 4.
  • the circulation pump 4 is switched off and the discharge pump 11 is switched on.
  • the discharge pump 11 pumps out the water for rinsing. This is finished at time t 3 .
  • the mainwash phase starts and fresh water for rinsing is filled into the dishwasher.
  • the filling is finished and the circulation pump 4 is switched on again.
  • the mainwash phase is interrupted by a short intermediate filter cleaning break to perform a filter cleaning mode. During the filter cleaning mode the circulation pump 4 is switched off. This results in a back sloshing of the water in the water collection sump 2 and the water flows in the opposite direction, i.e.
  • the circulation pump 4 is switched off preferably until the water level in the water collection sump 2 has increased to a level above the whole flat filter 7 in order to float the deposits of the whole flat filter 7. This preferred water level is indicated as level "L” in Fig. 1. At time t 6 , the water level has reached this level "L" above the surface of the flat filter 7.
  • the circulation pump 4 is switched on again.
  • the direction of the water flow turns therefore again and the water level starts to decrease.
  • the floating deposits of the flat filter 7 are drawn into the discharge section 10 of the dishwasher and do not load the flat filter 7 anymore.
  • the time interval between t 5 and t 6 may be predetermined in advance by the specific cleaning program which is controlled by the control unit 12.
  • the time interval between t 5 and t 6 is set by the control unit 12 as a function of the time necessary to increase the water level on the level "L" above the surface of the flat filter 7. This time interval is in particular dependent on the loading of the flat filter 7, the coarse sieve 8 and the fine mesh filter 9. It may vary between a few seconds and several minutes.
  • water level sensors in the washing chamber 1 which send a signal to the control unit 12 when the water level has reached the desired level "L”.
  • the normal main wash program continues, but with cleaned filters thanks to the previous intermediate filter cleaning break.
  • the circulation 4 pump is switched off again.
  • the water level in the water collection sump 2 increases again and with the increasing water level the coarse sieve 8, the fine mesh filter 9 and the flat filter 7 are cleaned and the deposits start to float.
  • the cold rinse phase ends. Now again the dirty water is pumped off by means of the discharge pump 11 and fresh water is filled into the water collection sump 2. Then the hot rinse phase is performed until time t 17 . The dishwashing program finally ends by a drying phase, which ends at time t 18 . The cleaned and dried dishes can now be taken from the washing chamber by the user.
  • the filter cleaning mode is only performed in the mainwash phase II of the cleaning program and in periodical time intervals of e.g. 10 minutes.
  • the filter cleaning mode may be also performed in the prewash phase I and/or the cold rinse phase III and/or the hot rinse phase IV of the cleaning program.
  • the filter cleaning mode may advantageously be used in all phases in which water is circulated by means of the circulation pump.
  • the repetitions of the filter cleaning steps as shown between time t 11 and time t 14 may be performed in all filter cleaning breaks.
  • the number of repetitions can also be 3, 4 or more.
  • the number of repetitions is chosen in a flexible way as a function of the loading of the filters or the turbidity of the circulating water.
  • the filter cleaning mode is not performed in periodical time intervals, but as a function of the turbidity measurements of the turbidity sensor 13.
  • the turbidity sensor 13 measures the turbidity of the circulating water.
  • the turbidity sensor 13 sends a control signal to the control unit 12 and the control units 12 initiates the filter cleaning mode.
  • This exemplary embodiment of the invention offers a lot of flexibility.
  • the filter cleaning mode is only performed when necessary, but it also ensures under all circumstances that the flat filter 7, the coarse sieve 8 and the fine mesh filter 9 are not getting overloaded. This ensures an optimal performance of the dishwashing process.
EP04024910A 2004-10-20 2004-10-20 Geschirrspülmaschine und dazugehöriges Verfahren zum Betreiben Withdrawn EP1649797A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP04024910A EP1649797A1 (de) 2004-10-20 2004-10-20 Geschirrspülmaschine und dazugehöriges Verfahren zum Betreiben
US11/576,717 US20090211600A1 (en) 2004-10-20 2005-09-13 Dishwasher and corresponding method for operating it
EP05784386A EP1802228A1 (de) 2004-10-20 2005-09-13 Geschirrspülmaschine und entsprechendes betriebsverfahren dafür
PCT/EP2005/009799 WO2006045374A1 (en) 2004-10-20 2005-09-13 Dishwasher and CORRESPONDING method for operating IT
CN2005800360294A CN101043837B (zh) 2004-10-20 2005-09-13 洗碟机以及操作它的相应方法
US13/369,517 US20120222705A1 (en) 2004-10-20 2012-02-09 Dishwasher and corresponding method for operating it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04024910A EP1649797A1 (de) 2004-10-20 2004-10-20 Geschirrspülmaschine und dazugehöriges Verfahren zum Betreiben

Publications (1)

Publication Number Publication Date
EP1649797A1 true EP1649797A1 (de) 2006-04-26

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP04024910A Withdrawn EP1649797A1 (de) 2004-10-20 2004-10-20 Geschirrspülmaschine und dazugehöriges Verfahren zum Betreiben
EP05784386A Ceased EP1802228A1 (de) 2004-10-20 2005-09-13 Geschirrspülmaschine und entsprechendes betriebsverfahren dafür

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP05784386A Ceased EP1802228A1 (de) 2004-10-20 2005-09-13 Geschirrspülmaschine und entsprechendes betriebsverfahren dafür

Country Status (4)

Country Link
US (2) US20090211600A1 (de)
EP (2) EP1649797A1 (de)
CN (1) CN101043837B (de)
WO (1) WO2006045374A1 (de)

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EP1882438A1 (de) * 2006-07-28 2008-01-30 Miele & Cie. KG Verfahren zur Durchführung eines Reinigungsprogramms mit einem Sieb-Reinigungsabschnitt
WO2011043864A3 (en) * 2009-10-08 2011-06-23 Premark Feg L.L.C. Conveyor warewasher having an automatic wastewater removal system
CN103079448A (zh) * 2010-09-02 2013-05-01 Lg电子株式会社 餐具清洗机及其控制方法
EP2554102A4 (de) * 2010-03-31 2016-07-20 Lg Electronics Inc Geschirrspüler und steuerungsverfahren dafür
US9943210B2 (en) 2014-05-13 2018-04-17 Illinois Tool Works Inc. Warewasher with automated scrapping system
EP2671497A3 (de) * 2012-06-04 2018-07-25 Samsung Electronics Co., Ltd Geschirrspüler
EP3603475A4 (de) * 2017-03-20 2020-09-09 LG Electronics Inc. -1- Geschirrspüler und steuerungsverfahren dafür

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DE102008055022A1 (de) * 2008-12-19 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Abpumpen einer Flüssigkeit aus einem wasserführenden Haushaltsgerät
US8973591B2 (en) 2011-06-08 2015-03-10 General Electric Company Dishwasher with a motor driven filter backflush system and associated backflush method
KR101970517B1 (ko) * 2012-06-04 2019-04-19 삼성전자주식회사 식기세척기
KR102042221B1 (ko) 2012-12-28 2019-11-07 엘지전자 주식회사 식기세척기 및 그 제어방법
GB201300362D0 (en) * 2013-01-09 2013-02-20 Reckitt Benckiser Uk Ltd Low cost senor system
US9326658B2 (en) 2014-01-21 2016-05-03 General Electric Company Method for operating a dishwasher appliance
CN106562749B (zh) * 2015-10-09 2020-08-28 青岛海尔洗碗机有限公司 一种洗碗机自清洗系统及洗碗机
US10022034B2 (en) 2016-07-12 2018-07-17 Haier Us Appliance Solutions, Inc. Dishwasher appliance and method
US10512386B2 (en) * 2017-02-24 2019-12-24 Haier Us Appliance Solutions, Inc. Dishwasher appliance and filter
CN108113611A (zh) * 2017-12-29 2018-06-05 火星人厨具股份有限公司 一种洗碗机及洗碗机的工作方法
CN109820465A (zh) * 2019-03-06 2019-05-31 佛山市顺德区美的洗涤电器制造有限公司 家用电器的控制方法和家用电器
CN111672192B (zh) * 2020-05-28 2021-11-02 佛山市百斯特电器科技有限公司 洗涤设备的清洁提醒方法及装置
CN111789559A (zh) * 2020-07-17 2020-10-20 上海明略人工智能(集团)有限公司 一种洗碗机
TR202011936A2 (tr) 2020-07-28 2022-02-21 Arçeli̇k Anoni̇m Şi̇rketi̇ Isitici i̇çeren bi̇r bulaşik maki̇nesi̇
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DE102006035728A1 (de) * 2006-07-28 2008-01-31 Miele & Cie. Kg Verfahren zur Durchführung eines Reinigungsprogramms mit einem Sieb-Reinigungsabschnitt
EP1882438A1 (de) * 2006-07-28 2008-01-30 Miele & Cie. KG Verfahren zur Durchführung eines Reinigungsprogramms mit einem Sieb-Reinigungsabschnitt
US8881750B2 (en) * 2009-10-08 2014-11-11 Premark Feg L.L.C. Conveyor warewasher having an automatic wastewater removal system
WO2011043864A3 (en) * 2009-10-08 2011-06-23 Premark Feg L.L.C. Conveyor warewasher having an automatic wastewater removal system
US20120199166A1 (en) * 2009-10-08 2012-08-09 Premark Feg L.L.C. Conveyor warewasher having an automatic wastewater removal system
EP2554102A4 (de) * 2010-03-31 2016-07-20 Lg Electronics Inc Geschirrspüler und steuerungsverfahren dafür
US9642510B2 (en) 2010-03-31 2017-05-09 Lg Electronics Inc. Dishwasher and control method thereof
EP2611351A4 (de) * 2010-09-02 2014-06-04 Lg Electronics Inc Geschirrspülmaschine und steuerverfahren dafür
US8882928B2 (en) 2010-09-02 2014-11-11 Lg Electronics Inc. Method for controlling dishwasher
EP2611351A2 (de) * 2010-09-02 2013-07-10 LG Electronics Inc. Geschirrspülmaschine und steuerverfahren dafür
CN103079448A (zh) * 2010-09-02 2013-05-01 Lg电子株式会社 餐具清洗机及其控制方法
EP2671497A3 (de) * 2012-06-04 2018-07-25 Samsung Electronics Co., Ltd Geschirrspüler
US9943210B2 (en) 2014-05-13 2018-04-17 Illinois Tool Works Inc. Warewasher with automated scrapping system
EP3603475A4 (de) * 2017-03-20 2020-09-09 LG Electronics Inc. -1- Geschirrspüler und steuerungsverfahren dafür
US11478122B2 (en) 2017-03-20 2022-10-25 Lg Electronics Inc. Dishwasher and method of controlling the same

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CN101043837B (zh) 2011-05-18
WO2006045374A1 (en) 2006-05-04
US20120222705A1 (en) 2012-09-06
US20090211600A1 (en) 2009-08-27
EP1802228A1 (de) 2007-07-04

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